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core: check block version for alt chains too 

This is incompatible with block version voting
This commit is contained in:
moneromooo-monero 2017-01-14 22:41:14 +00:00
parent d98db4868d
commit feb499aaae
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GPG Key ID: 686F07454D6CEFC3
3 changed files with 36 additions and 0 deletions
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8
src/cryptonote_core/blockchain.cpp
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@ -1259,6 +1259,14 @@ bool Blockchain::handle_alternative_block(const block& b, const crypto::hash& id
return false;
}
// this is a cheap test
if (!m_hardfork->check_for_height(b, block_height))
{
LOG_PRINT_L1("Block with id: " << id << std::endl << "has old version for height " << block_height);
bvc.m_verifivation_failed = true;
return false;
}
//block is not related with head of main chain
//first of all - look in alternative chains container
auto it_prev = m_alternative_chains.find(b.prev_id);

13
src/cryptonote_core/hardfork.cpp
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@ -114,6 +114,19 @@ bool HardFork::check(const cryptonote::block &block) const
return do_check(::get_block_version(block), ::get_block_vote(block));
}
bool HardFork::do_check_for_height(uint8_t block_version, uint8_t voting_version, uint64_t height) const
{
int fork_index = get_voted_fork_index(height);
return block_version == heights[fork_index].version
&& voting_version >= heights[fork_index].version;
}
bool HardFork::check_for_height(const cryptonote::block &block, uint64_t height) const
{
CRITICAL_REGION_LOCAL(lock);
return do_check_for_height(::get_block_version(block), ::get_block_vote(block), height);
}
bool HardFork::add(uint8_t block_version, uint8_t voting_version, uint64_t height)
{
CRITICAL_REGION_LOCAL(lock);

15
src/cryptonote_core/hardfork.h
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@ -113,6 +113,20 @@ namespace cryptonote
*/
bool check(const cryptonote::block &block) const;
/**
* @brief same as check, but for a particular height, rather than the top
*
* NOTE: this does not play well with voting, and relies on voting to be
* disabled (that is, forks happen on the scheduled date, whether or not
* enough blocks have voted for the fork).
*
* returns true if no error, false otherwise
*
* @param block the new block
* @param height which height to check for
*/
bool check_for_height(const cryptonote::block &block, uint64_t height) const;
/**
* @brief add a new block
*
@ -211,6 +225,7 @@ namespace cryptonote
uint8_t get_block_version(uint64_t height) const;
bool do_check(uint8_t block_version, uint8_t voting_version) const;
bool do_check_for_height(uint8_t block_version, uint8_t voting_version, uint64_t height) const;
int get_voted_fork_index(uint64_t height) const;
uint8_t get_effective_version(uint8_t voting_version) const;
bool add(uint8_t block_version, uint8_t voting_version, uint64_t height);